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T0 DCS status

T0 DCS status. Meeting on V0 and T0 electronics 10 December 2004 CERN. Power Supply functional diagram of the T0 Detector. Overview of VME controller V2718+A2818: PCI - VME Bridge. VME64x compliant Optical Link 1.25 Gbit/s Daisy Chain Capability (up to 8 V2718 per A2818)

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T0 DCS status

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  1. T0 DCS status Meeting on V0 and T0 electronics 10 December 2004 CERN

  2. Power Supply functional diagram of the T0 Detector

  3. Overview of VME controller V2718+A2818: PCI - VME Bridge. VME64x compliant Optical Link 1.25 Gbit/s Daisy Chain Capability (up to 8 V2718 per A2818) PCI 32 bit / 33MHz Low Protocol Overhead Transfer rate: up to ~60 Mbyte/sec No boot required: ready at power-up! Front panel dataway display Seven programmable I/Os

  4. Overview of electronics array

  5. Main parameters of the Detector Control System for the T0 • Subsystem location Controlled parameters Number Contol • ---------------------------------------------------------------------------------------------------------------------------- • Fast electr. VME delays 24 W • Thresholds for CFD 24 W • Thresholds for T0v 2 R/W • Thresholds for multiplicity • trigger 3 R/W • ---------------------------------------------------------------------------------------------------------------------------- • T0TRM VME crate same as TOF • T0DRM VME crate same as TOF • --------------------------------------------------------------------------------------------------------------------------- • Low voltage CAEN2725 LV supply on/off 6 R/W • for Shoe Box LV settings and readings 6 R/W • safety switch 1 on/off • --------------------------------------------------------------------------------------------------------------------------- • HV voltage CAEN2725 HV supply on/off 24 R/W • HV settings and readings 24 R/W • safety switch 1 on/off • --------------------------------------------------------------------------------------------------------------------------- • Laser system switch 1 on/off • attenuator 1 R/W • --------------------------------------------------------------------------------------------------------------------------- • Generator switch 1 on/off • ---------------------------------------------------------------------------------------------------------------------------

  6. Serial Communication, simple, reliable and over long distances. Date: 14.09.2004 Serial Communication, RS-232…..and more Most successful serial data standard for PC and telecom applications is RS-232. Similarly, RS-485 and RS-422 are among the successful standards for industrial applications. The standards are not directly compatible. Examples of serial devices: The PC mouse, modems, numerous measurement equipment, (volt/ampere meters, multimeters) PC controlled industrial equipment, etc. RS-232: single-ended signals standard for serial communication with Baud rates of 100 to 115200 Baud over distances from 900 to 15 meters. Data-rate capability of about 1Mbps. RS-422: differential signals standard for transmission over greater distances. RS-485: improved version of the RS-422 standard for even longer line lengths and more nodes on a bus system. For more info: type: “how to”, RS-232, RS-422, RS-485 in Goooooogle 1

  7. Re-direction of Serial Communication Date: 14.09.2004 Controller PC or Workstation WinXP PVSS2 VHV application “talks” to PC’s local COMport and data is re-directed via ethernet and a converter to the serial device. Digi-One software for serial re-direction (See www.digi.com) EtherNet Ethernet/Serial Converters (Digi-One SP with Firmware) Serial Device 2A

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